CN103245321B - Tower of wind generating set tubular state monitoring system and method - Google Patents
Tower of wind generating set tubular state monitoring system and method Download PDFInfo
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- CN103245321B CN103245321B CN201310166732.3A CN201310166732A CN103245321B CN 103245321 B CN103245321 B CN 103245321B CN 201310166732 A CN201310166732 A CN 201310166732A CN 103245321 B CN103245321 B CN 103245321B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention provides a kind of tower of wind generating set tubular state monitoring system and method, wherein, system comprises the first obliquity sensor for being arranged at tower cylinder top, for the second obliquity sensor of being arranged at tower cylinder base center and the processor be connected with the first obliquity sensor, the second obliquity sensor respectively; First obliquity sensor is for detecting first inclination data of tower cylinder center line relative to vertical curve; Second obliquity sensor is for detecting second inclination data of tower cylinder base centerline relative to vertical curve; Processor is used for calculating tower cylinder top center relative to tower cylinder base center the first side-play amount in the horizontal direction according to the first inclination data; Processor is used for calculating tower cylinder base center the second side-play amount in the horizontal direction according to the second inclination data.In the present invention, owing to being only provided with sensor and processor, thus this system cost is lower, and algorithm is simple.
Description
Technical field
The present invention relates to tower of wind generating set cylinder measuring technique, particularly relate to a kind of tower of wind generating set tubular state monitoring system and method.
Background technology
Tower of wind generating set cylinder is the tower bar of aerogenerator, mainly play a supportive role in wind power generating set, simultaneously stability unit shakes, tower cylinder subjects the load complicated and changeable such as thrust, moment of flexure and torque load, make in wind power generating set operational process, tower cylinder there will be waving and the distortion such as distortion of certain amplitude; In addition, tower cylinder also can be subject to the impact of the factors such as material deformation, parts inefficacy and settlement of foundation, produces.The excessive inclination and distortion of tower cylinder can affect the normal operation of wind power generating set, and serious also can produce security incident, therefore, needs to carry out Real-Time Monitoring to the inclination and distortion of tower cylinder.
At present, when carrying out inclination and distortion to tower cylinder and measuring, wind load suffered by tower cylinder is divided into three parts, be respectively the wind load of static wind load, quasi-static wind load (namely wind speed changes wind load slowly) and quick shift, accordingly, the distortion of tower cylinder is decomposed into the superposition from the distortion under above-mentioned different wind load, and be static deformation, quasistatic distortion and dynamic deformation three part by tower cylinder Deformation partition, the superposition of this three portion deforms just can obtain the distortion of tower cylinder.Therefore, need to determine the static deformation amount of tower cylinder under static wind load, ground quasistatic deflection and the dynamic deformation amount under quick shift wind load under quasistatic wind load, then determine the deformation equation of tower cylinder, and then obtain the deformation curve of tower cylinder.Existing tower cylinder inclination and distortion measuring system, needs to build the static quasistatic deformation equation of complicated tower cylinder and dynamic deformation equation, and needs to arrange inclination sensor and acceleration transducer, and thus, system complex and algorithm is complicated, measurement cost is higher.
Summary of the invention
The invention provides a kind of tower of wind generating set tubular state monitoring system and method, effectively can overcome the problem that algorithm is complicated and measurement cost is higher that prior art exists.
The invention provides a kind of tower of wind generating set tubular state monitoring system, comprising the first obliquity sensor for being arranged at tower cylinder top, for the second obliquity sensor of being arranged at tower cylinder base center and the processor be connected with described first obliquity sensor, the second obliquity sensor respectively;
Described first obliquity sensor is for detecting first inclination data of described tower cylinder center line relative to vertical curve;
Described second obliquity sensor is for detecting second inclination data of described tower cylinder base centerline relative to vertical curve;
Described processor is used for calculating described tower cylinder top center relative to described tower cylinder base center the first side-play amount in the horizontal direction according to described first inclination data; Described processor is used for calculating described tower cylinder base center the second side-play amount in the horizontal direction according to described second inclination data.
The present invention also provides a kind of tower of wind generating set tubular state monitoring method, comprising:
Detect described tower cylinder center line relative to the first inclination data of vertical curve and tower cylinder base centerline the second inclination data relative to vertical curve;
Described tower cylinder top center is calculated relative to described tower cylinder base center the first side-play amount in the horizontal direction according to described first inclination data; Described tower cylinder base center the second side-play amount is in the horizontal direction calculated according to described second inclination data;
The form of tower of wind generating set cylinder is monitored according to described first side-play amount and the second side-play amount.
Tower of wind generating set tubular state monitoring system provided by the invention and method, first obliquity sensor detects first inclination data of tower cylinder center line relative to vertical curve, second obliquity sensor is used for for detecting second inclination data of tower cylinder base centerline relative to vertical curve, processor directly calculates the first side-play amount and the second side-play amount according to the first inclination data and the second inclination data, owing to being only provided with sensor and processor, thus this system cost is lower, and algorithm is simple.
Accompanying drawing explanation
Fig. 1 is arranged on the structural representation on Wind turbines for tower of wind generating set tubular state monitoring system that the embodiment of the present invention provides;
The tower of wind generating set tubular state monitoring system structural representation that Fig. 2 provides for the embodiment of the present invention;
The schematic flow sheet of the tower of wind generating set tubular state monitoring method that Fig. 3 provides for the embodiment of the present invention.
Embodiment
Fig. 1 is arranged on the structural representation on Wind turbines for tower of wind generating set tubular state monitoring system that the embodiment of the present invention provides; The tower of wind generating set tubular state monitoring system structural representation that Fig. 2 provides for the embodiment of the present invention.
As illustrated in fig. 1 and 2, the present embodiment provides a kind of tower of wind generating set tubular state monitoring system, comprises the first obliquity sensor 1 for being arranged at tower cylinder top, for the second obliquity sensor 2 of being arranged at tower cylinder base center and the processor 3 be connected with the first obliquity sensor 1, second obliquity sensor 2 respectively.First obliquity sensor 1 can be arranged on the top platform of tower cylinder 10, and the second obliquity sensor 2 can be arranged in the base platform of tower cylinder 10 in the heart.
First obliquity sensor 1 is for detecting first inclination data of tower cylinder 10 center line relative to vertical curve; That is, the first obliquity sensor 1 is for measuring tower cylinder center line change of pitch angle amount with respect to the horizontal plane, and the first inclination data that this first obliquity sensor 1 detects comprises α
xand α
y, α is the angle of tower cylinder center line and vertical curve, α
xfor tower cylinder end face and X-axis (east-west direction) angle, in the present embodiment, α
xfor the top horizontal table top of tower cylinder 10 and the angle of X-axis, α
yfor tower cylinder end face and Y-axis (North and South direction) angle, in the present embodiment, α
yfor the top horizontal table top of tower cylinder 10 and the angle of Y-axis.
Second obliquity sensor 2 is for detecting second inclination data of tower cylinder base centerline relative to vertical curve; That is, the second obliquity sensor 2 is for measuring tower cylinder base centerline change of pitch angle amount with respect to the horizontal plane, and the first inclination data that this second obliquity sensor 2 detects comprises β
xand β
y, β is the angle of tower cylinder base centerline and vertical curve, β
xfor tower cylinder base top surface and X-axis (east-west direction) angle, in the present embodiment, β
xfor the base platform face of tower cylinder 10 and the angle of X-axis, β
yfor tower cylinder base top surface and Y-axis (North and South direction) angle, in the present embodiment, β
yfor the base platform face of tower cylinder 10 and the angle of Y-axis.
Processor 3 is for calculating tower cylinder top center relative to tower cylinder base center the first side-play amount in the horizontal direction according to the first inclination data, the first side-play amount is
wherein, Δ x=Hsin (α
x); Δ y=Hsin (α
y); H is tower cylinder height; Processor 3 is for calculating tower cylinder base center the second side-play amount in the horizontal direction according to the second inclination data, the second side-play amount is
wherein, Δ x=Rsin (β
x); Δ y=Rsin (β
y); R is the radius of tower cylinder base.
The tower of wind generating set tubular state monitoring system that the present embodiment provides, first obliquity sensor detects first inclination data of tower cylinder center line relative to vertical curve, second obliquity sensor is used for for detecting second inclination data of tower cylinder base centerline relative to vertical curve, processor directly calculates the first side-play amount and the second side-play amount according to the first inclination data and the second inclination data, owing to being only provided with sensor and processor, thus this system cost is lower, and algorithm is simple.
On the technical scheme basis of the tower of wind generating set tubular state monitoring system provided at above-described embodiment, can also comprise the display 4 for showing monitoring result in real time, display 4 is connected with processor 3.Particularly, enforcement monitoring tower of wind generating set tubular state in the mode of performance graph, is shown by display 4 by processor 3, and for monitoring personnel provide real-time monitoring result, monitoring personnel can by the change of display 4 monitoring tower tubular state intuitively.
Further, the first side-play amount and the second side-play amount also for being connected with fan master control system 5, and compare with alarm threshold value by processor 3 respectively, control Wind turbines shut down or give the alarm to master control computer room by fan master control system 5.When the first side-play amount or the second side-play amount are greater than alarm threshold value; processor 3 transmits control signal to fan master control system 5; after fan master control system 5 receives the control signal of processor 3 transmission, control Wind turbines and shut down, Wind turbines can be avoided to occur accidents such as damaging or collapse.When the first side-play amount or the second side-play amount are greater than alarm threshold value, processor 3 can also send alerting signal to master control computer room, to point out monitoring personnel to adopt an effective measure in time, and the metamorphosis of reply tower of wind generating set cylinder.
The schematic flow sheet of the tower of wind generating set tubular state monitoring method that Fig. 3 provides for the embodiment of the present invention.As shown in Figure 3, the tower of wind generating set tubular state monitoring method that the present embodiment provides, comprising:
Step 100, detects described tower cylinder center line relative to the first inclination data of vertical curve and tower cylinder base centerline the second inclination data relative to vertical curve.
First inclination data of described tower cylinder center line relative to vertical curve can be detected by the first obliquity sensor, particularly, first obliquity sensor is for measuring tower cylinder center line change of pitch angle amount with respect to the horizontal plane, and the first inclination data that this first obliquity sensor detects comprises α
xand α
y, α is the angle of tower cylinder center line and vertical curve, α
xfor tower cylinder end face and X-axis (east-west direction) angle, in the present embodiment, α
xfor the top horizontal table top of tower cylinder and the angle of X-axis, α
yfor tower cylinder end face and Y-axis (North and South direction) angle, in the present embodiment, α
yfor the top horizontal table top of tower cylinder and the angle of Y-axis.
Can detect second inclination data of tower cylinder base centerline relative to vertical curve by the second obliquity sensor, particularly, the second obliquity sensor is for detecting second inclination data of tower cylinder base centerline relative to vertical curve; That is, the second obliquity sensor is for measuring tower cylinder base centerline change of pitch angle amount with respect to the horizontal plane, and the first inclination data that this second obliquity sensor detects comprises β
xand β
y, β is the angle of tower cylinder base centerline and vertical curve, β
xfor tower cylinder base top surface and X-axis (east-west direction) angle, in the present embodiment, β
xfor the base platform face of tower cylinder and the angle of X-axis, β
yfor tower cylinder base top surface and Y-axis (North and South direction) angle, in the present embodiment, β
yfor the base platform face of tower cylinder and the angle of Y-axis.
Step 200, calculates described tower cylinder top center relative to described tower cylinder base center the first side-play amount in the horizontal direction according to described first inclination data; Described tower cylinder base center the second side-play amount is in the horizontal direction calculated according to described second inclination data.
First side-play amount is
wherein, Δ x=Hsin (α
x); Δ y=Hsin (α
y); H is tower cylinder height, and α is the angle of tower cylinder center line and vertical curve, α
xfor tower cylinder end face and X-axis (east-west direction) angle, α
yfor tower cylinder end face and Y-axis (North and South direction) angle; First inclination data comprises α
xand α
y.
Second side-play amount is
wherein, Δ x=Rsin (β
x); Δ y=Rsin (β
y); R is the radius of tower cylinder base, and β is the angle of tower cylinder base centerline and vertical curve, β
xfor tower cylinder base top surface and X-axis (east-west direction) angle, β
yfor tower cylinder base top surface and Y-axis (North and South direction) angle; Second inclination data comprises β
xand β
y.
Step 300, monitors the form of tower of wind generating set cylinder according to described first side-play amount and the second side-play amount.
Particularly, the dynamic waveform of tower of wind generating set cylinder distortion can be shown in the display in real time according to the first side-play amount and the second side-play amount.
In addition, can also compare with the alarm threshold value preset according to the first side-play amount and the second side-play amount, when the first side-play amount or the second side-play amount are greater than alarm threshold value, give the alarm to master control computer room.
The tower of wind generating set tubular state monitoring method that the present embodiment provides, identical with the technique effect of the tower of wind generating set tubular state monitoring system that above-described embodiment provides, do not repeat them here.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each embodiment of the method can have been come by the hardware that programmed instruction is relevant.Aforesaid program can be stored in a computer read/write memory medium.This program, when performing, performs the step comprising above-mentioned each embodiment of the method; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a tower of wind generating set tubular state monitoring system, it is characterized in that, comprising the first obliquity sensor for being arranged at tower cylinder top, for the second obliquity sensor of being arranged at tower cylinder base center and the processor be connected with described first obliquity sensor, the second obliquity sensor respectively;
Described first obliquity sensor is for detecting first inclination data of described tower cylinder center line relative to vertical curve;
Described second obliquity sensor is for detecting second inclination data of described tower cylinder base centerline relative to vertical curve;
Described processor is used for calculating described tower cylinder top center relative to described tower cylinder base center the first side-play amount in the horizontal direction according to described first inclination data; Described processor is used for calculating described tower cylinder base center the second side-play amount in the horizontal direction according to described second inclination data;
Described first inclination data comprises α
xand α
y, described first side-play amount is
wherein, Δ x=Hsin (α
x); Δ y=Hsin (α
y), wherein H is tower cylinder height, and α is the angle of tower cylinder center line and vertical curve, α
xfor tower cylinder end face and X-axis angle, X-axis is east-west direction, α
yfor tower cylinder end face and Y-axis angle, Y-axis is North and South direction;
Described second inclination data comprises β
xand β
y, described second side-play amount is
wherein, Δ x=Rsin (β
x); Δ y=Rsin (β
y), wherein R is the radius of tower cylinder base, and β is the angle of tower cylinder base centerline and vertical curve, β
xfor tower cylinder base top surface and X-axis angle, X-axis is east-west direction, β
yfor tower cylinder base top surface and Y-axis angle, Y-axis is North and South direction.
2. tower of wind generating set tubular state monitoring system according to claim 1, it is characterized in that, also comprise the display for showing monitoring result in real time, described display is connected with described processor.
3. tower of wind generating set tubular state monitoring system according to claim 1 and 2; it is characterized in that; described processor is also for being connected with fan master control system; and the first side-play amount and the second side-play amount are compared with alarm threshold value respectively, control Wind turbines by described fan master control system and shut down or give the alarm to master control computer room.
4. a tower of wind generating set tubular state monitoring method, is characterized in that, comprising:
Detect described tower cylinder center line relative to the first inclination data of vertical curve and tower cylinder base centerline the second inclination data relative to vertical curve;
Described tower cylinder top center is calculated relative to described tower cylinder base center the first side-play amount in the horizontal direction according to described first inclination data; Described tower cylinder base center the second side-play amount is in the horizontal direction calculated according to described second inclination data;
The form of tower of wind generating set cylinder is monitored according to described first side-play amount and the second side-play amount;
Described detection described tower cylinder center line is specially relative to the second inclination data of vertical curve relative to the first inclination data of vertical curve and tower cylinder base centerline: detect first inclination data of described tower cylinder center line relative to vertical curve by the first obliquity sensor, detects second inclination data of tower cylinder base centerline relative to vertical curve by the second obliquity sensor;
Described first inclination data comprises α
xand α
y, described first side-play amount is
wherein, Δ x=Hsin (α
x); Δ y=Hsin (α
y); H is tower cylinder height, and α is the angle of tower cylinder center line and vertical curve, α
xfor tower cylinder end face and X-axis angle, X-axis is east-west direction, α
yfor tower cylinder end face and Y-axis angle, Y-axis is North and South direction;
Described second inclination data comprises β
xand β
y, described second side-play amount is
wherein, Δ x=Rsin (β
x); Δ y=Rsin (β
y); R is the radius of tower cylinder base, and β is the angle of tower cylinder base centerline and vertical curve, β
xfor tower cylinder base top surface and X-axis angle, X-axis is east-west direction, β
yfor tower cylinder base top surface and Y-axis angle, Y-axis is North and South direction.
5. tower of wind generating set tubular state monitoring method according to claim 4, it is characterized in that, the described form according to the first side-play amount and the second side-play amount determination tower of wind generating set cylinder is specially, and shows the dynamic waveform of tower of wind generating set cylinder distortion according to the first side-play amount and the second side-play amount in the display in real time.
6. tower of wind generating set tubular state monitoring method according to claim 4, it is characterized in that, the described form according to the first side-play amount and the second side-play amount determination tower of wind generating set cylinder is specially, compare with the alarm threshold value preset according to the first side-play amount and the second side-play amount, when the first side-play amount or the second side-play amount are greater than alarm threshold value, give the alarm to master control computer room.
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